Commit 18f47d10 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Linus Torvalds
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[PATCH] v4l: 759: more improvements at msp3400 c from ivtv code 



- More improvements at msp3400.c from ivtv code.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 6df840f2

drivers/media/video/msp3400.c

+93 −18
Original line number Diff line number Diff line
@@ -649,6 +649,30 @@ msp3400c_print_mode(struct msp3400c *msp) 
	}

}



#define MSP3400_MAX 4

static struct i2c_client *msps[MSP3400_MAX];

static void msp3400c_restore_dfp(struct i2c_client *client)

{

	struct msp3400c *msp = i2c_get_clientdata(client);

	int i;



	for (i = 0; i < DFP_COUNT; i++) {

		if (-1 == msp->dfp_regs[i])

			continue;

		msp3400c_write(client, I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);

	}

}



/* if the dfp_regs is set, set what's in there. Otherwise, set the default value */

static int msp3400c_write_dfp_with_default(struct i2c_client *client,

					int addr, int default_value)

{

	struct msp3400c *msp = i2c_get_clientdata(client);

	int value = default_value;

	if (addr < DFP_COUNT && -1 != msp->dfp_regs[addr])

		value = msp->dfp_regs[addr];

	return msp3400c_write(client, I2C_MSP3400C_DFP, addr, value);

}



/* ----------------------------------------------------------------------- */
@@ -834,7 +858,8 @@ static int msp3400c_thread(void *data) 
			goto restart;



		/* carrier detect pass #1 -- main carrier */

		cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);

		cd = carrier_detect_main;

		count = CARRIER_COUNT(carrier_detect_main);



		if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {

			/* autodetect doesn't work well with AM ... */
@@ -868,13 +893,16 @@ static int msp3400c_thread(void *data) 
		case 0: /* 4.5 */

		case 2: /* 6.0 */

		default:

			cd = NULL; count = 0;

			cd = NULL;

			count = 0;

			break;

		}



		if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {

			/* autodetect doesn't work well with AM ... */

			cd = NULL; count = 0; max2 = 0;

			cd = NULL;

			count = 0;

			max2 = 0;

		}

		for (this = 0; this < count; this++) {

			msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
@@ -962,6 +990,8 @@ static int msp3400c_thread(void *data) 


		/* unmute */

		msp3400c_setvolume(client, msp->muted, msp->left, msp->right);

		msp3400c_restore_dfp(client);



		if (debug)

			msp3400c_print_mode(msp);
@@ -1207,6 +1237,7 @@ static int msp3410d_thread(void *data) 
		msp3400c_settreble(client, msp->treble);

		msp3400c_setvolume(client, msp->muted, msp->left, msp->right);

		msp3400c_write(client, I2C_MSP3400C_DFP, 0x0013, msp->acb);

		msp3400c_restore_dfp(client);



		/* monitor tv audio mode */

		while (msp->watch_stereo) {
@@ -1230,7 +1261,7 @@ static void msp34xxg_set_source(struct i2c_client *client, int source); 
/* (re-)initialize the msp34xxg, according to the current norm in msp->norm

 * return 0 if it worked, -1 if it failed

 */

static int msp34xxg_init(struct i2c_client *client)

static int msp34xxg_reset(struct i2c_client *client)

{

	struct msp3400c *msp = i2c_get_clientdata(client);

	int modus,std;
@@ -1257,7 +1288,7 @@ static int msp34xxg_init(struct i2c_client *client) 
		return -1;

	if (msp3400c_write(client,

			   I2C_MSP3400C_DEM,

			   0x20/*stanard*/,

			   0x20/*standard*/,

			   std))

		return -1;
@@ -1265,21 +1296,18 @@ static int msp34xxg_init(struct i2c_client *client) 
	   standard/audio autodetection right now */

	msp34xxg_set_source(client, msp->source);



	if (msp3400c_write(client, I2C_MSP3400C_DFP,

			   0x0e, /* AM/FM Prescale */

			   0x3000 /* default: [15:8] 75khz deviation */))

	if (msp3400c_write_dfp_with_default(client, 0x0e,	/* AM/FM Prescale */

					    0x3000

					    /* default: [15:8] 75khz deviation */

	    ))

		return -1;



	if (msp3400c_write(client, I2C_MSP3400C_DFP,

			   0x10, /* NICAM Prescale */

			   0x5a00 /* default: 9db gain (as recommended) */))

	if (msp3400c_write_dfp_with_default(client, 0x10,	/* NICAM Prescale */

					    0x5a00

					    /* default: 9db gain (as recommended) */

	    ))

		return -1;



	if (msp3400c_write(client,

			   I2C_MSP3400C_DEM,

			   0x20, /* STANDARD SELECT  */

			   standard /* default: 0x01 for automatic standard select*/))

		return -1;

	return 0;

}
@@ -1303,7 +1331,7 @@ static int msp34xxg_thread(void *data) 
			break;



		/* setup the chip*/

		msp34xxg_init(client);

		msp34xxg_reset(client);

		std = standard;

		if (std != 0x01)

			goto unmute;
@@ -1486,6 +1514,7 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind) 
	struct msp3400c *msp;

        struct i2c_client *c;

	int (*thread_func)(void *data) = NULL;

	int i;



        client_template.adapter = adap;

        client_template.addr = addr;
@@ -1504,12 +1533,15 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind) 
	}



	memset(msp,0,sizeof(struct msp3400c));

	msp->norm = VIDEO_MODE_NTSC;

	msp->left = 58880;	/* 0db gain */

	msp->right = 58880;	/* 0db gain */

	msp->bass = 32768;

	msp->treble = 32768;

	msp->input = -1;

	msp->muted = 0;

	for (i = 0; i < DFP_COUNT; i++)

		msp->dfp_regs[i] = -1;



	i2c_set_clientdata(c, msp);

	init_waitqueue_head(&msp->wq);
@@ -1579,6 +1611,7 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind) 
	/* startup control thread if needed */

	if (thread_func) {

		msp->kthread = kthread_run(thread_func, c, "msp34xx");



		if (NULL == msp->kthread)

			printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");

		msp_wake_thread(c);
@@ -1587,12 +1620,21 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind) 
	/* done */

        i2c_attach_client(c);



	/* update our own array */

	for (i = 0; i < MSP3400_MAX; i++) {

		if (NULL == msps[i]) {

			msps[i] = c;

			break;

		}

	}



	return 0;

}



static int msp_detach(struct i2c_client *client)

{

	struct msp3400c *msp  = i2c_get_clientdata(client);

	int i;



	/* shutdown control thread */

	if (msp->kthread) {
@@ -1601,7 +1643,16 @@ static int msp_detach(struct i2c_client *client) 
	}

	msp3400c_reset(client);



	/* update our own array */

	for (i = 0; i < MSP3400_MAX; i++) {

		if (client == msps[i]) {

			msps[i] = NULL;

			break;

		}

	}



	i2c_detach_client(client);



	kfree(msp);

	kfree(client);

	return 0;
@@ -1753,6 +1804,30 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg) 
			break;

		}

		break;

		/* work-in-progress:  hook to control the DFP registers */

	case MSP_SET_DFPREG:

	{

		struct msp_dfpreg *r = arg;

		int i;



		if (r->reg < 0 || r->reg >= DFP_COUNT)

			return -EINVAL;

		for (i = 0; i < sizeof(bl_dfp) / sizeof(int); i++)

			if (r->reg == bl_dfp[i])

				return -EINVAL;

		msp->dfp_regs[r->reg] = r->value;

		msp3400c_write(client, I2C_MSP3400C_DFP, r->reg, r->value);

		return 0;

	}

	case MSP_GET_DFPREG:

	{

		struct msp_dfpreg *r = arg;



		if (r->reg < 0 || r->reg >= DFP_COUNT)

			return -EINVAL;

		r->value = msp3400c_read(client, I2C_MSP3400C_DFP, r->reg);

		return 0;

	}



	/* --- v4l ioctls --- */

	/* take care: bttv does userspace copying, we'll get a

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